What does this research mean for the field?

Large palpable atrial 'A' waves on the apex cardiogram are a graphically demonstrable clinical feature in patients with aortic valve disease and cardiomyopathy. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

September 1, 1968Open Access

The 'A' wave of the apex cardiogram in aortic valve disease and cardiomyopathy.

Key Points

Key points are not available for this paper at this time.

Abstract

Marey (1863) introduced a graphic method of recording the apex beat and showed that the main systolic impulse was immediately preceded by a small wave due to atrial systole.Potain (1875) found that the atrial systolic wave was greatly in- creased in hypertensive heart disease, that it could be palpated, and was usually associated with a presystolic (fourth) heart sound.Barlow and Kincaid-Smith (1960), Grayzel (1960), and Parry and Mounsey (1961) have recently drawn attention to the presence of a palpable atrial impulse at the apex in hypertensive heart disease.Large palpable atrial waves giving rise to a double apical impulse have also been described in hypertrophic obstructive cardiomyopathy and they have been demonstrated graphically by means of the apex cardiogram (Boi-

Perguntar à IA

Bookmark

View Full Paper